More Americans remodeled their homes in the spring months as Home Depot ( ) matched both earnings and revenue estimates. Same store sales were up 5.4%. The home improvement retailer also raised its full year guidance. Aetna ( ) says it will pull out of most Obamacare exchanged. The insurer will stop offering policies on the exchanges in 11 of the 15 states where it currently operates. Aetna will only sell Obamacare policies in Delaware, Iowa, Nebraska and Virginia. Aetna says its policyholders are turning out to be sicker and costlier than expected. Berkshire Hathaway ( ) is boosting its stake in Apple ( ) by 55%. This even as other big investors, like Carl Icahn, are reducing their holdings in the company. Berkshire owned 15.23 million Apple shares worth $1.46 billion as of June 30th, according to regulatory findings. Berkshire also cut its stake in Walmart ( ) by 27%.Video provided by TheStreet